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postnew [5]
3 years ago
12

Solve for z Please help me, thank u!!!

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
3 0

-3.6

Step-by-step explanation:

z/(-2) + -5 = -3.2 → times -2

z + 10 = 6.4

z = 6.4 - 10

z = -3.6

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kvv77 [185]

I suppose you want to solve the equation for m. To do so, multiply both sides by 8m to get

3m = -1

Now divide both sides by 3 to get

m = -\dfrac{1}{3}

7 0
3 years ago
Read 2 more answers
PLEASE HELP!!! ASAP!!!!!!!!!!!!!!! 10 POINTS
I am Lyosha [343]
1800|2\\.\ 900|2\\.\ 450|2\\.\ 225|5\\.\ \ 45|5\\.\ \ \ 9|3\\.\ \ \ 3|3\\.\ \ \ 1|\\\\1880=2\cdot2\cdot2\cdot5\cdot5\cdot3\cdot3=2^3\cdot5^2\cdot3^2\\\\Answer:\ \boxed{2^3\cdot3^2\cdot5^2}

\sqrt[3]{320}\\\\320|2\\160|2\\.\ 80|2\\.\ 40|2\\.\ 20|2\\.\ 10|2\\.\ \ 5|5\\.\ \ 1|\\\\320=2\cdot2\cdot2\cdot2\cdot2\cdo2\cdot5=2^3\cdot2^3\cdot5=2^3\cdot2^3\cdot\\\\\sqrt[3]{320}=\sqrt[3]{2^3\cdot2^3\cdot5}=\sqrt[3]{2^3}\cdot\sqrt[3]{2^3}\cdot\sqrt[3]{5}=2\cdot2\sqrt[3]{5}=4\sqrt[3]5\\\\Answer:\ \boxed{\sqrt[3]{320}=4\sqrt[3]{5}}
4 0
3 years ago
Read 2 more answers
A vendor sells h hot dogs and s sodas. If a hot dog costs twice as much as a soda, and if the vendor takes in a total of d dolla
Gennadij [26K]

A soda costs \frac{100d}{(s+2h)} cents

Step-by-step explanation:

A vendor sells h hot dogs and s sodas

  • A hot dog costs twice as much as a soda
  • The vendor takes in a total of d dollars

We need to find how many cents does a soda cost

Assume that the cost of a soda is x cents

∵ The cost of a hot dog is twice as a soda

- Twice means multiply by 2

∵ The cost of a soda = x cents

∴ The cost of a hot dog = 2x

∵ The total cost of h hot dog and s soda is $d

∵ 1 dollar = 100 cents

- Change the total cost to cents

∴ $d = d × 100 = 100d cents

∵ The vendor sells h hot dogs and s soda

∴ The total cost of h hot dog and s soda = s(x) + h(2x)

∴ The total cost of h hot dog and s soda = sx + 2hx

- Equate the total cost by 100 d

∴ sx + 2hx = 100d

- Take x as a common factor from the left hand side

∴ x(s + 2h) = 100d

- Divide both sides by (s + 2h)

∴ x=\frac{100d}{(s+2h)}

∵ x represents the cost of a soda in cents

∴ The cost of a soda is \frac{100d}{(s+2h)} cents

A soda costs \frac{100d}{(s+2h)} cents

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

5 0
4 years ago
If there 8 boys for every 7 girls with 195 total, how many are boys?
Lilit [14]
B = boys   g = girls
.................................

b + g = 195        b = 195 - g

<u>b</u> = <u>8</u>
g    7

Substitute b for 195 - g in the 2nd equation:

<u>b</u> = <u>8</u>
g    7

<u>195 - g</u> = <u>8</u>
    g        7

Cross Multiply

8g = 7 . ( 195 - g )
8g = 1365 - 7g
8g + 7g = 1365
15g = 1365
g = <u>1365</u>
        15
g = 91

Substitute g for 91 in one of the equations:

b + g = 195
b + 91 = 195
b = 195 - 91
b = 104


S = 104 boys.
6 0
4 years ago
Over what interval is the graph f(x)=-(x+8)2 decreasing?
ratelena [41]
This downward-opening parabola has its vertex at x = -8, so the function is decreasing on the interval (-8, ∞).

8 0
3 years ago
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